EP 1666338 B1 20121017 - Torque detecting apparatus
Title (en)
Torque detecting apparatus
Title (de)
Drehmomentsensor
Title (fr)
Dispositif de détection de couple
Publication
Application
Priority
JP 2004349832 A 20041202
Abstract (en)
[origin: EP1666338A2] A torque detecting apparatus detects torque applied upon a torsion bar of an electric power steering apparatus, as two sensors 1, 2, which have ratiometric characteristics and have the same characteristics, simultaneously detect the amount of torsion of the torsion bar. With a gain of one of the two sensors 1, 2 set to the positive polarity and a gain of the other sensor 1 or 2 set to the negative polarity, a control circuit calculates the torque applied upon the torsion bar by multiplying a difference between detection outputs from the two sensors 1, 2 by a predetermined coefficient. A torque detecting apparatus which is capable of detecting the torsional angle of a rotation shaft 5, namely, torque applied upon the rotation shaft 5 easily and accurately using two sensors 1, 2 is thus realized.
IPC 8 full level
B62D 5/04 (2006.01)
CPC (source: EP US)
B62D 6/10 (2013.01 - EP US); G01L 5/221 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 1666338 A2 20060607; EP 1666338 A3 20110810; EP 1666338 B1 20121017; JP 2006162272 A 20060622; US 2006117870 A1 20060608; US 7370541 B2 20080513
DOCDB simple family (application)
EP 05111563 A 20051201; JP 2004349832 A 20041202; US 29055705 A 20051201